Horner-apg QX751 OCS Manual de usuario descargar pdf (Pagina 18)

CH. 3 MAN0890-02-EN

August 20, 2009 Page 18 of 96 ECN # 979

3.2. Mounting Orientation

NOTE:

There are NO orientation restrictions on the QX751. However, the above orientation provides for optimum

readability of the screen and ease of use of the keypad.

Figure 3.2 – Orientation of QX751

3.3 Factors Affecting Panel Layout Design and Clearances

The designer of a panel layout needs to assess the requirements of a particular system and to consider

the following design factors. A convenient checklist is provided on page

20.

a. Clearance / Adequate Space

Install devices to allow sufficient clearance to open and close the panel door.

Table 3.1 – Minimum Clearance Requirements for Panel Box and Door

Minimum Distance between base of device and sides of

cabinet

2 inches (50.80mm)

Minimum Distance between base of device and wiring ducts 1.5 inches (38.10mm)

If more than one device installed in panel box (or on door):

Minimum Distance between bases of each device

4 inches between bases of each

device (101.60mm)

When door is closed:

Minimum distance between device and closed door

(Be sure to allow enough depth for QX751/BP.)

2 inches (50.80mm)

Warning: It is important to follow the requirements of the panel manufacturer and to follow

applicable electrical codes and standards.

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Horner-apg QX751 OCS Manual de usuario Pagina 18